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SY10H350_06 Datasheet, PDF (1/5 Pages) Micrel Semiconductor – PECL-to-TTL TRANSLATOR
Micrel, Inc.
PECL-to-TTL
TRANSLATOR
SY10H350
SY10H350
FEATURES
s Single 5V power supply
s Propagation delay, 3.5ns typical
s Fully compatible with MC10H350
s Available in 20-pin PLCC package
BLOCK DIAGRAM
12
4
3
5
7
9
8
14
13
15
17
19
18
VCC (+5 VDC) = Pins 2 and 20; GND = Pin 10
DESCRIPTION
The SY10H350 consists of 4 translators with differential
inputs and TTL outputs. The 3-state outputs can be
disabled by applying a HIGH TTL logic level on the
common OE input.
The SY10H350 is designed to be used primarily in
systems incorporating both ECL and TTL logic operating
off a common power supply. The separate VCC power
pins are not connected internally and thus isolate the
noisy TTL VCC runs from the relatively quiet ECL VCC
runs on the printed circuit board. The differential inputs
allow the H350 to be used as an inverting or noninverting
translator, or a differential line receiver. The H350 can
also drive CMOS with the addition of a pullup resistor.
PIN NAMES
Pin
D0 – D3
/D0 – /D3
Q0 – Q3
VCCE
VCCT
GND
/OE
Function
True PECL Inputs
Inverted PECL Inputs
TTL Outputs
PECL VCC (5.0V)
TTL VCC (5.0V)
Ground
Output Enable
M9999-032906
hbwhelp@micrel.com or (408) 955-1690
1
Rev.: B Amendment: /0
Issue Date: March 2006